Book Image

Getting Started with React

By : Doel Sengupta, Manu Singhal, Danillo Corvalan
Book Image

Getting Started with React

By: Doel Sengupta, Manu Singhal, Danillo Corvalan

Overview of this book

ReactJS, popularly known as the V (view) of the MVC architecture, was developed by the Facebook and Instagram developers. It follows a unidirectional data flow, virtual DOM, and DOM difference that are generously leveraged in order to increase the performance of the UI. Getting Started with React will help you implement the Reactive paradigm to build stateless and asynchronous apps with React. We will begin with an overview of ReactJS and its evolution over the years, followed by building a simple React component. We will then build the same react component with JSX syntax to demystify its usage. You will see how to configure the Facebook Graph API, get your likes list, and render it using React. Following this, we will break the UI into components and you’ll learn how to establish communication between them and respond to users input/events in order to have the UI reflect their state. You’ll also get to grips with the ES6 syntaxes. Moving ahead, we will delve into the FLUX and its architecture, which is used to build client-side web applications and complements React’s composable view components by utilizing a unidirectional data flow. Towards the end, you’ll find out how to make your components reusable, and test and deploy them into a production environment. Finally, we’ll briefly touch on other topics such as React on the server side, Redux and some advanced concepts.
Table of Contents (18 chapters)
Getting Started with React
About the Authors
About the Reviewers

The structure of component

Now that we have explored quite a lot regarding ReactJS, there might be queries in your mind about how to architecture a react component or more broadly a react application as a whole. There are no ground rules that have been set, which is ideal while writing an application based on ReactJS. However, if we dig into the tutorials by the Facebook documentation team, hyperlink, we will be able to understand the underlying way they have used while writing such an app.

Let's explore first how a component is structured mostly:

  1. The component declaredData is fetched from the server [if required].

  2. The propTypes of the component are declared [used for validations].

  3. Component lifecycle methods [componentWillMount, componentDidMount, componentDidUpdate,componentWillUnmount, and so on] are defined.

  4. Within each of these lifecycle methods, the functions of these methods are either declared or called internally from another JS functions...